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- PDB-6vh7: Doublet Tau Fibril from Corticobasal Degeneration Human Brain Tissue -

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Basic information

Entry
Database: PDB / ID: 6vh7
TitleDoublet Tau Fibril from Corticobasal Degeneration Human Brain Tissue
ComponentsMicrotubule-associated protein tau
KeywordsPROTEIN FIBRIL / Pathological amyloid fibril / cross-beta fold / parallel beta-sheets
Function / homology
Function and homology information


plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / neurofibrillary tangle / microtubule lateral binding / axonal transport / tubulin complex / positive regulation of protein localization to synapse / phosphatidylinositol bisphosphate binding / generation of neurons / axonal transport of mitochondrion ...plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / neurofibrillary tangle / microtubule lateral binding / axonal transport / tubulin complex / positive regulation of protein localization to synapse / phosphatidylinositol bisphosphate binding / generation of neurons / axonal transport of mitochondrion / axon development / rRNA metabolic process / central nervous system neuron development / regulation of microtubule-based movement / negative regulation of protein localization to mitochondrion / regulation of mitochondrial fission / regulation of chromosome organization / intracellular distribution of mitochondria / minor groove of adenine-thymine-rich DNA binding / lipoprotein particle binding / microtubule polymerization / negative regulation of mitochondrial membrane potential / regulation of microtubule polymerization / dynactin binding / apolipoprotein binding / regulation of calcium-mediated signaling / main axon / Caspase-mediated cleavage of cytoskeletal proteins / glial cell projection / regulation of microtubule polymerization or depolymerization / neurofibrillary tangle assembly / negative regulation of mitochondrial fission / protein polymerization / positive regulation of axon extension / axolemma / positive regulation of microtubule polymerization / regulation of cellular response to heat / positive regulation of superoxide anion generation / Activation of AMPK downstream of NMDARs / cytoplasmic microtubule organization / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / axon cytoplasm / positive regulation of protein localization / supramolecular fiber organization / synapse assembly / somatodendritic compartment / astrocyte activation / nuclear periphery / phosphatidylinositol binding / protein phosphatase 2A binding / enzyme inhibitor activity / stress granule assembly / SH3 domain binding / cellular response to reactive oxygen species / regulation of microtubule cytoskeleton organization / memory / microglial cell activation / cellular response to nerve growth factor stimulus / regulation of synaptic plasticity / Hsp90 protein binding / microtubule cytoskeleton organization / regulation of autophagy / synapse organization / protein homooligomerization / PKR-mediated signaling / response to lead ion / neuron projection development / cytoplasmic ribonucleoprotein granule / microtubule cytoskeleton / cell-cell signaling / cellular response to heat / single-stranded DNA binding / actin binding / protein-folding chaperone binding / growth cone / double-stranded DNA binding / cell body / microtubule / sequence-specific DNA binding / amyloid fibril formation / microtubule binding / dendritic spine / learning or memory / protein-macromolecule adaptor activity / neuron projection / membrane raft / negative regulation of gene expression / axon / neuronal cell body / DNA damage response / dendrite / protein kinase binding / enzyme binding / mitochondrion / DNA binding / RNA binding / extracellular region / identical protein binding / nucleus
Similarity search - Function
Microtubule-associated protein Tau / Microtubule associated protein, tubulin-binding repeat / Tau and MAP protein, tubulin-binding repeat / Tau and MAP proteins tubulin-binding repeat signature. / Tau and MAP proteins tubulin-binding repeat profile. / :
Similarity search - Domain/homology
Microtubule-associated protein tau
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 3.8 Å
AuthorsArakhamia, T. / Lee, C.E. / Carlomagno, Y. / Duong, D.M. / Kundinger, S.R. / Wang, K. / Williams, D. / DeTure, M. / Dickson, D.W. / Cook, C.N. ...Arakhamia, T. / Lee, C.E. / Carlomagno, Y. / Duong, D.M. / Kundinger, S.R. / Wang, K. / Williams, D. / DeTure, M. / Dickson, D.W. / Cook, C.N. / Seyfried, N.T. / Petrucelli, L. / Fitzpatrick, A.W.P.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS) United States
National Institutes of Health/National Institute on Aging (NIH/NIA) United States
CitationJournal: Cell / Year: 2020
Title: Posttranslational Modifications Mediate the Structural Diversity of Tauopathy Strains.
Authors: Tamta Arakhamia / Christina E Lee / Yari Carlomagno / Duc M Duong / Sean R Kundinger / Kevin Wang / Dewight Williams / Michael DeTure / Dennis W Dickson / Casey N Cook / Nicholas T Seyfried ...Authors: Tamta Arakhamia / Christina E Lee / Yari Carlomagno / Duc M Duong / Sean R Kundinger / Kevin Wang / Dewight Williams / Michael DeTure / Dennis W Dickson / Casey N Cook / Nicholas T Seyfried / Leonard Petrucelli / Anthony W P Fitzpatrick /
Abstract: Tau aggregation into insoluble filaments is the defining pathological hallmark of tauopathies. However, it is not known what controls the formation and templated seeding of strain-specific structures ...Tau aggregation into insoluble filaments is the defining pathological hallmark of tauopathies. However, it is not known what controls the formation and templated seeding of strain-specific structures associated with individual tauopathies. Here, we use cryo-electron microscopy (cryo-EM) to determine the structures of tau filaments from corticobasal degeneration (CBD) human brain tissue. Cryo-EM and mass spectrometry of tau filaments from CBD reveal that this conformer is heavily decorated with posttranslational modifications (PTMs), enabling us to map PTMs directly onto the structures. By comparing the structures and PTMs of tau filaments from CBD and Alzheimer's disease, it is found that ubiquitination of tau can mediate inter-protofilament interfaces. We propose a structure-based model in which cross-talk between PTMs influences tau filament structure, contributing to the structural diversity of tauopathy strains. Our approach establishes a framework for further elucidating the relationship between the structures of polymorphic fibrils, including their PTMs, and neurodegenerative disease.
History
DepositionJan 9, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 4, 2020Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2020Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2020Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2020Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2020Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2020Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2020Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1Mar 6, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.2May 21, 2025Group: Data collection / Structure summary / Category: em_admin / em_software / pdbx_entry_details / Item: _em_admin.last_update / _em_software.name
Revision 1.1May 21, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name

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Structure visualization

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  • Deposited structure unit
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Structure viewerMolecule:
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Assembly

Deposited unit
A: Microtubule-associated protein tau
B: Microtubule-associated protein tau
C: Microtubule-associated protein tau
E: Microtubule-associated protein tau
F: Microtubule-associated protein tau
G: Microtubule-associated protein tau


Theoretical massNumber of molelcules
Total (without water)69,6506
Polymers69,6506
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein
Microtubule-associated protein tau / Neurofibrillary tangle protein / Paired helical filament-tau / PHF-tau


Mass: 11608.375 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: MAPT, MAPTL, MTBT1, TAU / Production host: Homo sapiens (human) / References: UniProt: P10636
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: FILAMENT / 3D reconstruction method: helical reconstruction

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Sample preparation

ComponentName: Doublet Tau Fibril from Corticobasal Degeneration Human Brain Tissue
Type: TISSUE / Entity ID: all / Source: NATURAL
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: unspecified
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.17.1_3660: / Classification: refinement
EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Helical symmertyAngular rotation/subunit: -0.6 ° / Axial rise/subunit: 4.8 Å / Axial symmetry: C2
3D reconstructionResolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 7549 / Symmetry type: HELICAL
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0074944
ELECTRON MICROSCOPYf_angle_d0.9616606
ELECTRON MICROSCOPYf_dihedral_angle_d8.087654
ELECTRON MICROSCOPYf_chiral_restr0.054744
ELECTRON MICROSCOPYf_plane_restr0.006846

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